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Insomnia (sleeplessness)

insomnia 4D comfort People speak of sleeplessness (or insomnia) when someone can't get to sleep properly for days on end (more than 3 weeks), wakes up regularly, AND when this has consequences at daytime. The person feels tired and agitated, has problems concentrating, possibly head aches, etc. In some cases it is recommended to consult a physician, and even have a test done in a specialized sleep laboratory.